/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.smartandroid.sa.sherlock.widget;

import android.app.PendingIntent;
import android.app.SearchManager;
import android.app.SearchableInfo;
import android.content.ActivityNotFoundException;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.database.Cursor;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.ResultReceiver;
import android.speech.RecognizerIntent;
import android.support.v4.view.KeyEventCompat;
import android.support.v4.widget.CursorAdapter;
import android.text.Editable;
import android.text.InputType;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.text.style.ImageSpan;
import android.util.AttributeSet;
import android.util.Log;
import android.util.TypedValue;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewTreeObserver;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.AutoCompleteTextView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;

import com.smartandroid.sa.sherlock.view.CollapsibleActionView;

import java.lang.reflect.Method;
import java.util.WeakHashMap;

import static com.smartandroid.sa.sherlock.widget.SuggestionsAdapter.getColumnString;

/**
 * A widget that provides a user interface for the user to enter a search query
 * and submit a request to a search provider. Shows a list of query suggestions
 * or results, if available, and allows the user to pick a suggestion or result
 * to launch into.
 * 
 * <p>
 * When the SearchView is used in an ActionBar as an action view for a
 * collapsible menu item, it needs to be set to iconified by default using
 * {@link #setIconifiedByDefault(boolean) setIconifiedByDefault(true)}. This is
 * the default, so nothing needs to be done.
 * </p>
 * <p>
 * If you want the search field to always be visible, then call
 * setIconifiedByDefault(false).
 * </p>
 * 
 * <div class="special reference"> <h3>Developer Guides</h3>
 * <p>
 * For information about using {@code SearchView}, read the
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 * read the <a href="{@docRoot}, read the <a href="{@docRoot}, read the <a
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 * href="{@docRoot} , read the <a href="{@docRoot}, read the <a href="{@docRoot}
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 * href="{@docRoot}, read the <a href="{@docRoot}, read the <a href="{@docRoot}
 * guide/topics/search/index.html">Search</a> developer guide.
 * </p>
 * </div>
 * 
 * @see android.view.MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW
 * @attr ref android.R.styleable#SearchView_iconifiedByDefault
 * @attr ref android.R.styleable#SearchView_imeOptions
 * @attr ref android.R.styleable#SearchView_inputType
 * @attr ref android.R.styleable#SearchView_maxWidth
 * @attr ref android.R.styleable#SearchView_queryHint
 */
public class SearchView extends LinearLayout implements CollapsibleActionView {

	private static final boolean DBG = false;
	private static final String LOG_TAG = "SearchView";

	/**
	 * Private constant for removing the microphone in the keyboard.
	 */
	private static final String IME_OPTION_NO_MICROPHONE = "nm";

	private OnQueryTextListener mOnQueryChangeListener;
	private OnCloseListener mOnCloseListener;
	private OnFocusChangeListener mOnQueryTextFocusChangeListener;
	private OnSuggestionListener mOnSuggestionListener;
	private OnClickListener mOnSearchClickListener;

	private boolean mIconifiedByDefault;
	private boolean mIconified;
	private CursorAdapter mSuggestionsAdapter;
	private View mSearchButton;
	private View mSubmitButton;
	private View mSearchPlate;
	private View mSubmitArea;
	private ImageView mCloseButton;
	private View mSearchEditFrame;
	private View mVoiceButton;
	private SearchAutoComplete mQueryTextView;
	private View mDropDownAnchor;
	private ImageView mSearchHintIcon;
	private boolean mSubmitButtonEnabled;
	private CharSequence mQueryHint;
	private boolean mQueryRefinement;
	private boolean mClearingFocus;
	private int mMaxWidth;
	private boolean mVoiceButtonEnabled;
	private CharSequence mOldQueryText;
	private CharSequence mUserQuery;
	private boolean mExpandedInActionView;
	private int mCollapsedImeOptions;

	private SearchableInfo mSearchable;
	private Bundle mAppSearchData;
	private Context c;

	/*
	 * SearchView can be set expanded before the IME is ready to be shown during
	 * initial UI setup. The show operation is asynchronous to account for this.
	 */
	private Runnable mShowImeRunnable = new Runnable() {
		public void run() {
			InputMethodManager imm = (InputMethodManager) getContext()
					.getSystemService(Context.INPUT_METHOD_SERVICE);

			if (imm != null) {
				showSoftInputUnchecked(SearchView.this, imm, 0);
			}
		}
	};

	private Runnable mUpdateDrawableStateRunnable = new Runnable() {
		public void run() {
			updateFocusedState();
		}
	};

	private Runnable mReleaseCursorRunnable = new Runnable() {
		public void run() {
			if (mSuggestionsAdapter != null
					&& mSuggestionsAdapter instanceof SuggestionsAdapter) {
				mSuggestionsAdapter.changeCursor(null);
			}
		}
	};

	// For voice searching
	private final Intent mVoiceWebSearchIntent;
	private final Intent mVoiceAppSearchIntent;

	// A weak map of drawables we've gotten from other packages, so we don't
	// load them
	// more than once.
	private final WeakHashMap<String, Drawable.ConstantState> mOutsideDrawablesCache = new WeakHashMap<String, Drawable.ConstantState>();

	/**
	 * Callbacks for changes to the query text.
	 */
	public interface OnQueryTextListener {

		/**
		 * Called when the user submits the query. This could be due to a key
		 * press on the keyboard or due to pressing a submit button. The
		 * listener can override the standard behavior by returning true to
		 * indicate that it has handled the submit request. Otherwise return
		 * false to let the SearchView handle the submission by launching any
		 * associated intent.
		 * 
		 * @param query
		 *            the query text that is to be submitted
		 * 
		 * @return true if the query has been handled by the listener, false to
		 *         let the SearchView perform the default action.
		 */
		boolean onQueryTextSubmit(String query);

		/**
		 * Called when the query text is changed by the user.
		 * 
		 * @param newText
		 *            the new content of the query text field.
		 * 
		 * @return false if the SearchView should perform the default action of
		 *         showing any suggestions if available, true if the action was
		 *         handled by the listener.
		 */
		boolean onQueryTextChange(String newText);
	}

	public interface OnCloseListener {

		/**
		 * The user is attempting to close the SearchView.
		 * 
		 * @return true if the listener wants to override the default behavior
		 *         of clearing the text field and dismissing it, false
		 *         otherwise.
		 */
		boolean onClose();
	}

	/**
	 * Callback interface for selection events on suggestions. These callbacks
	 * are only relevant when a SearchableInfo has been specified by
	 * {@link #setSearchableInfo}.
	 */
	public interface OnSuggestionListener {

		/**
		 * Called when a suggestion was selected by navigating to it.
		 * 
		 * @param position
		 *            the absolute position in the list of suggestions.
		 * 
		 * @return true if the listener handles the event and wants to override
		 *         the default behavior of possibly rewriting the query based on
		 *         the selected item, false otherwise.
		 */
		boolean onSuggestionSelect(int position);

		/**
		 * Called when a suggestion was clicked.
		 * 
		 * @param position
		 *            the absolute position of the clicked item in the list of
		 *            suggestions.
		 * 
		 * @return true if the listener handles the event and wants to override
		 *         the default behavior of launching any intent or submitting a
		 *         search query specified on that item. Return false otherwise.
		 */
		boolean onSuggestionClick(int position);
	}

	public SearchView(Context context) {
		this(context, null);
		this.c = context;
	}

	public SearchView(Context context, AttributeSet attrs) {
		super(context, attrs);
		this.c = context;

		if (Build.VERSION.SDK_INT < Build.VERSION_CODES.FROYO) {
			throw new IllegalStateException("SearchView is API 8+ only.");
		}

		LayoutInflater inflater = (LayoutInflater) context
				.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		inflater.inflate(
				getResources().getIdentifier("abs__search_view", "layout",
						context.getPackageName()), this, true);
		// inflater.inflate(R.layout.abs__search_view, this, true);

		mSearchButton = findViewById(getResources().getIdentifier(
				"abs__search_button", "id", context.getPackageName()));
		// mSearchButton = findViewById(R.id.abs__search_button);
		mQueryTextView = (SearchAutoComplete) findViewById(getResources()
				.getIdentifier("abs__search_src_text", "id",
						context.getPackageName()));
		// mQueryTextView = (SearchAutoComplete)
		// findViewById(R.id.abs__search_src_text);
		mQueryTextView.setSearchView(this);

		mSearchEditFrame = findViewById(getResources().getIdentifier(
				"abs__search_edit_frame", "id", context.getPackageName()));
		// mSearchEditFrame = findViewById(R.id.abs__search_edit_frame);
		mSearchPlate = findViewById(getResources().getIdentifier(
				"abs__search_plate", "id", context.getPackageName()));
		// mSearchPlate = findViewById(R.id.abs__search_plate);
		mSubmitArea = findViewById(getResources().getIdentifier(
				"abs__submit_area", "id", context.getPackageName()));
		// mSubmitArea = findViewById(R.id.abs__submit_area);
		mSubmitButton = findViewById(getResources().getIdentifier(
				"abs__search_go_btn", "id", context.getPackageName()));
		// mSubmitButton = findViewById(R.id.abs__search_go_btn);
		mCloseButton = (ImageView) findViewById(getResources().getIdentifier(
				"abs__search_close_btn", "id", context.getPackageName()));
		// mCloseButton = (ImageView) findViewById(R.id.abs__search_close_btn);
		mVoiceButton = findViewById(getResources().getIdentifier(
				"abs__search_voice_btn", "id", context.getPackageName()));
		// mVoiceButton = findViewById(R.id.abs__search_voice_btn);
		mSearchHintIcon = (ImageView) findViewById(getResources()
				.getIdentifier("abs__search_mag_icon", "id",
						context.getPackageName()));
		// mSearchHintIcon = (ImageView)
		// findViewById(R.id.abs__search_mag_icon);

		mSearchButton.setOnClickListener(mOnClickListener);
		mCloseButton.setOnClickListener(mOnClickListener);
		mSubmitButton.setOnClickListener(mOnClickListener);
		mVoiceButton.setOnClickListener(mOnClickListener);
		mQueryTextView.setOnClickListener(mOnClickListener);

		mQueryTextView.addTextChangedListener(mTextWatcher);
		mQueryTextView.setOnEditorActionListener(mOnEditorActionListener);
		mQueryTextView.setOnItemClickListener(mOnItemClickListener);
		mQueryTextView.setOnItemSelectedListener(mOnItemSelectedListener);
		mQueryTextView.setOnKeyListener(mTextKeyListener);
		// Inform any listener of focus changes
		mQueryTextView.setOnFocusChangeListener(new OnFocusChangeListener() {

			public void onFocusChange(View v, boolean hasFocus) {
				if (mOnQueryTextFocusChangeListener != null) {
					mOnQueryTextFocusChangeListener.onFocusChange(
							SearchView.this, hasFocus);
				}
			}
		});

		TypedArray a = context.obtainStyledAttributes(
				attrs,
				new int[] { getResources().getIdentifier("SherlockSearchView",
						"styleable", context.getPackageName()) }, 0, 0);
		// R.styleable.SherlockSearchView, 0, 0);
		setIconifiedByDefault(a.getBoolean(
				getResources().getIdentifier(
						"SherlockSearchView_iconifiedByDefault", "styleable",
						context.getPackageName()), true));
		// R.styleable.SherlockSearchView_iconifiedByDefault, true));
		int maxWidth = a.getDimensionPixelSize(
				getResources().getIdentifier(
						"SherlockSearchView_android_maxWidth", "styleable",
						context.getPackageName()), -1);
		// R.styleable.SherlockSearchView_android_maxWidth, -1);
		if (maxWidth != -1) {
			setMaxWidth(maxWidth);
		}
		CharSequence queryHint = a.getText(getResources().getIdentifier(
				"SherlockSearchView_queryHint", "styleable",
				context.getPackageName()));
		// .getText(R.styleable.SherlockSearchView_queryHint);
		if (!TextUtils.isEmpty(queryHint)) {
			setQueryHint(queryHint);
		}
		int imeOptions = a.getInt(
				getResources().getIdentifier(
						"SherlockSearchView_android_imeOptions", "styleable",
						context.getPackageName()), -1);
		// R.styleable.SherlockSearchView_android_imeOptions, -1);
		if (imeOptions != -1) {
			setImeOptions(imeOptions);
		}
		int inputType = a.getInt(
				getResources().getIdentifier(
						"SherlockSearchView_android_inputType", "styleable",
						context.getPackageName()), -1);
		// R.styleable.SherlockSearchView_android_inputType, -1);
		if (inputType != -1) {
			setInputType(inputType);
		}

		a.recycle();

		boolean focusable = true;

		a = context.obtainStyledAttributes(
				attrs,
				new int[] { getResources().getIdentifier("SherlockView",
						"styleable", context.getPackageName()) }, 0,
				// a = context.obtainStyledAttributes(attrs,
				// R.styleable.SherlockView, 0,
				0);
		focusable = a.getBoolean(
				getResources().getIdentifier("SherlockView_android_focusable",
						"styleable", context.getPackageName()),
				// focusable =
				// a.getBoolean(R.styleable.SherlockView_android_focusable,
				focusable);
		a.recycle();
		setFocusable(focusable);

		// Save voice intent for later queries/launching
		mVoiceWebSearchIntent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
		mVoiceWebSearchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		mVoiceWebSearchIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
				RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);

		mVoiceAppSearchIntent = new Intent(
				RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
		mVoiceAppSearchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

		mDropDownAnchor = findViewById(mQueryTextView.getDropDownAnchor());
		if (mDropDownAnchor != null) {
			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
				mDropDownAnchor
						.addOnLayoutChangeListener(new OnLayoutChangeListener() {
							@Override
							public void onLayoutChange(View v, int left,
									int top, int right, int bottom,
									int oldLeft, int oldTop, int oldRight,
									int oldBottom) {
								adjustDropDownSizeAndPosition();
							}
						});
			} else {
				mDropDownAnchor.getViewTreeObserver()
						.addOnGlobalLayoutListener(
								new ViewTreeObserver.OnGlobalLayoutListener() {
									@Override
									public void onGlobalLayout() {
										adjustDropDownSizeAndPosition();
									}
								});
			}
		}

		updateViewsVisibility(mIconifiedByDefault);
		updateQueryHint();
	}

	/**
	 * Sets the SearchableInfo for this SearchView. Properties in the
	 * SearchableInfo are used to display labels, hints, suggestions, create
	 * intents for launching search results screens and controlling other
	 * affordances such as a voice button.
	 * 
	 * @param searchable
	 *            a SearchableInfo can be retrieved from the SearchManager, for
	 *            a specific activity or a global search provider.
	 */
	public void setSearchableInfo(SearchableInfo searchable) {
		mSearchable = searchable;
		if (mSearchable != null) {
			updateSearchAutoComplete();
			updateQueryHint();
		}
		// Cache the voice search capability
		mVoiceButtonEnabled = hasVoiceSearch();

		if (mVoiceButtonEnabled) {
			// Disable the microphone on the keyboard, as a mic is displayed
			// near the text box
			// TODO: use imeOptions to disable voice input when the new API will
			// be available
			mQueryTextView.setPrivateImeOptions(IME_OPTION_NO_MICROPHONE);
		}
		updateViewsVisibility(isIconified());
	}

	/**
	 * Sets the APP_DATA for legacy SearchDialog use.
	 * 
	 * @param appSearchData
	 *            bundle provided by the app when launching the search dialog
	 * @hide
	 */
	public void setAppSearchData(Bundle appSearchData) {
		mAppSearchData = appSearchData;
	}

	/**
	 * Sets the IME options on the query text field.
	 * 
	 * @see TextView#setImeOptions(int)
	 * @param imeOptions
	 *            the options to set on the query text field
	 * 
	 * @attr ref android.R.styleable#SearchView_imeOptions
	 */
	public void setImeOptions(int imeOptions) {
		mQueryTextView.setImeOptions(imeOptions);
	}

	/**
	 * Returns the IME options set on the query text field.
	 * 
	 * @return the ime options
	 * @see TextView#setImeOptions(int)
	 * 
	 * @attr ref android.R.styleable#SearchView_imeOptions
	 */
	public int getImeOptions() {
		return mQueryTextView.getImeOptions();
	}

	/**
	 * Sets the input type on the query text field.
	 * 
	 * @see TextView#setInputType(int)
	 * @param inputType
	 *            the input type to set on the query text field
	 * 
	 * @attr ref android.R.styleable#SearchView_inputType
	 */
	public void setInputType(int inputType) {
		mQueryTextView.setInputType(inputType);
	}

	/**
	 * Returns the input type set on the query text field.
	 * 
	 * @return the input type
	 * 
	 * @attr ref android.R.styleable#SearchView_inputType
	 */
	public int getInputType() {
		return mQueryTextView.getInputType();
	}

	/** @hide */
	@Override
	public boolean requestFocus(int direction, Rect previouslyFocusedRect) {
		// Don't accept focus if in the middle of clearing focus
		if (mClearingFocus)
			return false;
		// Check if SearchView is focusable.
		if (!isFocusable())
			return false;
		// If it is not iconified, then give the focus to the text field
		if (!isIconified()) {
			boolean result = mQueryTextView.requestFocus(direction,
					previouslyFocusedRect);
			if (result) {
				updateViewsVisibility(false);
			}
			return result;
		} else {
			return super.requestFocus(direction, previouslyFocusedRect);
		}
	}

	/** @hide */
	@Override
	public void clearFocus() {
		mClearingFocus = true;
		setImeVisibility(false);
		super.clearFocus();
		mQueryTextView.clearFocus();
		mClearingFocus = false;
	}

	/**
	 * Sets a listener for user actions within the SearchView.
	 * 
	 * @param listener
	 *            the listener object that receives callbacks when the user
	 *            performs actions in the SearchView such as clicking on buttons
	 *            or typing a query.
	 */
	public void setOnQueryTextListener(OnQueryTextListener listener) {
		mOnQueryChangeListener = listener;
	}

	/**
	 * Sets a listener to inform when the user closes the SearchView.
	 * 
	 * @param listener
	 *            the listener to call when the user closes the SearchView.
	 */
	public void setOnCloseListener(OnCloseListener listener) {
		mOnCloseListener = listener;
	}

	/**
	 * Sets a listener to inform when the focus of the query text field changes.
	 * 
	 * @param listener
	 *            the listener to inform of focus changes.
	 */
	public void setOnQueryTextFocusChangeListener(OnFocusChangeListener listener) {
		mOnQueryTextFocusChangeListener = listener;
	}

	/**
	 * Sets a listener to inform when a suggestion is focused or clicked.
	 * 
	 * @param listener
	 *            the listener to inform of suggestion selection events.
	 */
	public void setOnSuggestionListener(OnSuggestionListener listener) {
		mOnSuggestionListener = listener;
	}

	/**
	 * Sets a listener to inform when the search button is pressed. This is only
	 * relevant when the text field is not visible by default. Calling
	 * {@link #setIconified setIconified(false)} can also cause this listener to
	 * be informed.
	 * 
	 * @param listener
	 *            the listener to inform when the search button is clicked or
	 *            the text field is programmatically de-iconified.
	 */
	public void setOnSearchClickListener(OnClickListener listener) {
		mOnSearchClickListener = listener;
	}

	/**
	 * Returns the query string currently in the text field.
	 * 
	 * @return the query string
	 */
	public CharSequence getQuery() {
		return mQueryTextView.getText();
	}

	/**
	 * Sets a query string in the text field and optionally submits the query as
	 * well.
	 * 
	 * @param query
	 *            the query string. This replaces any query text already present
	 *            in the text field.
	 * @param submit
	 *            whether to submit the query right now or only update the
	 *            contents of text field.
	 */
	public void setQuery(CharSequence query, boolean submit) {
		mQueryTextView.setText(query);
		if (query != null) {
			mQueryTextView.setSelection(mQueryTextView.length());
			mUserQuery = query;
		}

		// If the query is not empty and submit is requested, submit the query
		if (submit && !TextUtils.isEmpty(query)) {
			onSubmitQuery();
		}
	}

	/**
	 * Sets the hint text to display in the query text field. This overrides any
	 * hint specified in the SearchableInfo.
	 * 
	 * @param hint
	 *            the hint text to display
	 * 
	 * @attr ref android.R.styleable#SearchView_queryHint
	 */
	public void setQueryHint(CharSequence hint) {
		mQueryHint = hint;
		updateQueryHint();
	}

	/**
	 * Gets the hint text to display in the query text field.
	 * 
	 * @return the query hint text, if specified, null otherwise.
	 * 
	 * @attr ref android.R.styleable#SearchView_queryHint
	 */
	public CharSequence getQueryHint() {
		if (mQueryHint != null) {
			return mQueryHint;
		} else if (mSearchable != null) {
			CharSequence hint = null;
			int hintId = mSearchable.getHintId();
			if (hintId != 0) {
				hint = getContext().getString(hintId);
			}
			return hint;
		}
		return null;
	}

	/**
	 * Sets the default or resting state of the search field. If true, a single
	 * search icon is shown by default and expands to show the text field and
	 * other buttons when pressed. Also, if the default state is iconified, then
	 * it collapses to that state when the close button is pressed. Changes to
	 * this property will take effect immediately.
	 * 
	 * <p>
	 * The default value is true.
	 * </p>
	 * 
	 * @param iconified
	 *            whether the search field should be iconified by default
	 * 
	 * @attr ref android.R.styleable#SearchView_iconifiedByDefault
	 */
	public void setIconifiedByDefault(boolean iconified) {
		if (mIconifiedByDefault == iconified)
			return;
		mIconifiedByDefault = iconified;
		updateViewsVisibility(iconified);
		updateQueryHint();
	}

	/**
	 * Returns the default iconified state of the search field.
	 * 
	 * @return
	 * 
	 * @attr ref android.R.styleable#SearchView_iconifiedByDefault
	 */
	public boolean isIconfiedByDefault() {
		return mIconifiedByDefault;
	}

	/**
	 * Iconifies or expands the SearchView. Any query text is cleared when
	 * iconified. This is a temporary state and does not override the default
	 * iconified state set by {@link #setIconifiedByDefault(boolean)}. If the
	 * default state is iconified, then a false here will only be valid until
	 * the user closes the field. And if the default state is expanded, then a
	 * true here will only clear the text field and not close it.
	 * 
	 * @param iconify
	 *            a true value will collapse the SearchView to an icon, while a
	 *            false will expand it.
	 */
	public void setIconified(boolean iconify) {
		if (iconify) {
			onCloseClicked();
		} else {
			onSearchClicked();
		}
	}

	/**
	 * Returns the current iconified state of the SearchView.
	 * 
	 * @return true if the SearchView is currently iconified, false if the
	 *         search field is fully visible.
	 */
	public boolean isIconified() {
		return mIconified;
	}

	/**
	 * Enables showing a submit button when the query is non-empty. In cases
	 * where the SearchView is being used to filter the contents of the current
	 * activity and doesn't launch a separate results activity, then the submit
	 * button should be disabled.
	 * 
	 * @param enabled
	 *            true to show a submit button for submitting queries, false if
	 *            a submit button is not required.
	 */
	public void setSubmitButtonEnabled(boolean enabled) {
		mSubmitButtonEnabled = enabled;
		updateViewsVisibility(isIconified());
	}

	/**
	 * Returns whether the submit button is enabled when necessary or never
	 * displayed.
	 * 
	 * @return whether the submit button is enabled automatically when necessary
	 */
	public boolean isSubmitButtonEnabled() {
		return mSubmitButtonEnabled;
	}

	/**
	 * Specifies if a query refinement button should be displayed alongside each
	 * suggestion or if it should depend on the flags set in the individual
	 * items retrieved from the suggestions provider. Clicking on the query
	 * refinement button will replace the text in the query text field with the
	 * text from the suggestion. This flag only takes effect if a SearchableInfo
	 * has been specified with {@link #setSearchableInfo(SearchableInfo)} and
	 * not when using a custom adapter.
	 * 
	 * @param enable
	 *            true if all items should have a query refinement button, false
	 *            if only those items that have a query refinement flag set
	 *            should have the button.
	 * 
	 * @see SearchManager#SUGGEST_COLUMN_FLAGS
	 * @see SearchManager#FLAG_QUERY_REFINEMENT
	 */
	public void setQueryRefinementEnabled(boolean enable) {
		mQueryRefinement = enable;
		if (mSuggestionsAdapter instanceof SuggestionsAdapter) {
			((SuggestionsAdapter) mSuggestionsAdapter)
					.setQueryRefinement(enable ? SuggestionsAdapter.REFINE_ALL
							: SuggestionsAdapter.REFINE_BY_ENTRY);
		}
	}

	/**
	 * Returns whether query refinement is enabled for all items or only
	 * specific ones.
	 * 
	 * @return true if enabled for all items, false otherwise.
	 */
	public boolean isQueryRefinementEnabled() {
		return mQueryRefinement;
	}

	/**
	 * You can set a custom adapter if you wish. Otherwise the default adapter
	 * is used to display the suggestions from the suggestions provider
	 * associated with the SearchableInfo.
	 * 
	 * @see #setSearchableInfo(SearchableInfo)
	 */
	public void setSuggestionsAdapter(CursorAdapter adapter) {
		mSuggestionsAdapter = adapter;

		mQueryTextView.setAdapter(mSuggestionsAdapter);
	}

	/**
	 * Returns the adapter used for suggestions, if any.
	 * 
	 * @return the suggestions adapter
	 */
	public CursorAdapter getSuggestionsAdapter() {
		return mSuggestionsAdapter;
	}

	/**
	 * Makes the view at most this many pixels wide
	 * 
	 * @attr ref android.R.styleable#SearchView_maxWidth
	 */
	public void setMaxWidth(int maxpixels) {
		mMaxWidth = maxpixels;

		requestLayout();
	}

	/**
	 * Gets the specified maximum width in pixels, if set. Returns zero if no
	 * maximum width was specified.
	 * 
	 * @return the maximum width of the view
	 * 
	 * @attr ref android.R.styleable#SearchView_maxWidth
	 */
	public int getMaxWidth() {
		return mMaxWidth;
	}

	@Override
	protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
		// Let the standard measurements take effect in iconified state.
		if (isIconified()) {
			super.onMeasure(widthMeasureSpec, heightMeasureSpec);
			return;
		}

		int widthMode = MeasureSpec.getMode(widthMeasureSpec);
		int width = MeasureSpec.getSize(widthMeasureSpec);

		switch (widthMode) {
		case MeasureSpec.AT_MOST:
			// If there is an upper limit, don't exceed maximum width (explicit
			// or implicit)
			if (mMaxWidth > 0) {
				width = Math.min(mMaxWidth, width);
			} else {
				width = Math.min(getPreferredWidth(), width);
			}
			break;
		case MeasureSpec.EXACTLY:
			// If an exact width is specified, still don't exceed any specified
			// maximum width
			if (mMaxWidth > 0) {
				width = Math.min(mMaxWidth, width);
			}
			break;
		case MeasureSpec.UNSPECIFIED:
			// Use maximum width, if specified, else preferred width
			width = mMaxWidth > 0 ? mMaxWidth : getPreferredWidth();
			break;
		}
		widthMode = MeasureSpec.EXACTLY;
		super.onMeasure(MeasureSpec.makeMeasureSpec(width, widthMode),
				heightMeasureSpec);
	}

	private int getPreferredWidth() {
		return getContext().getResources().getDimensionPixelSize(
				getResources().getIdentifier(
						"abs__search_view_preferred_width", "dimen",
						c.getPackageName()));
		// R.dimen.abs__search_view_preferred_width);
	}

	private void updateViewsVisibility(final boolean collapsed) {
		mIconified = collapsed;
		// Visibility of views that are visible when collapsed
		final int visCollapsed = collapsed ? VISIBLE : GONE;
		// Is there text in the query
		final boolean hasText = !TextUtils.isEmpty(mQueryTextView.getText());

		mSearchButton.setVisibility(visCollapsed);
		updateSubmitButton(hasText);
		mSearchEditFrame.setVisibility(collapsed ? GONE : VISIBLE);
		mSearchHintIcon.setVisibility(mIconifiedByDefault ? GONE : VISIBLE);
		updateCloseButton();
		updateVoiceButton(!hasText);
		updateSubmitArea();
	}

	private boolean hasVoiceSearch() {
		if (mSearchable != null && mSearchable.getVoiceSearchEnabled()) {
			Intent testIntent = null;
			if (mSearchable.getVoiceSearchLaunchWebSearch()) {
				testIntent = mVoiceWebSearchIntent;
			} else if (mSearchable.getVoiceSearchLaunchRecognizer()) {
				testIntent = mVoiceAppSearchIntent;
			}
			if (testIntent != null) {
				ResolveInfo ri = getContext().getPackageManager()
						.resolveActivity(testIntent,
								PackageManager.MATCH_DEFAULT_ONLY);
				return ri != null;
			}
		}
		return false;
	}

	private boolean isSubmitAreaEnabled() {
		return (mSubmitButtonEnabled || mVoiceButtonEnabled) && !isIconified();
	}

	private void updateSubmitButton(boolean hasText) {
		int visibility = GONE;
		if (mSubmitButtonEnabled && isSubmitAreaEnabled() && hasFocus()
				&& (hasText || !mVoiceButtonEnabled)) {
			visibility = VISIBLE;
		}
		mSubmitButton.setVisibility(visibility);
	}

	private void updateSubmitArea() {
		int visibility = GONE;
		if (isSubmitAreaEnabled()
				&& (mSubmitButton.getVisibility() == VISIBLE || mVoiceButton
						.getVisibility() == VISIBLE)) {
			visibility = VISIBLE;
		}
		mSubmitArea.setVisibility(visibility);
	}

	private void updateCloseButton() {
		final boolean hasText = !TextUtils.isEmpty(mQueryTextView.getText());
		// Should we show the close button? It is not shown if there's no focus,
		// field is not iconified by default and there is no text in it.
		final boolean showClose = hasText
				|| (mIconifiedByDefault && !mExpandedInActionView);
		mCloseButton.setVisibility(showClose ? VISIBLE : GONE);
		mCloseButton.getDrawable().setState(
				hasText ? ENABLED_STATE_SET : EMPTY_STATE_SET);
	}

	private void postUpdateFocusedState() {
		post(mUpdateDrawableStateRunnable);
	}

	private void updateFocusedState() {
		boolean focused = mQueryTextView.hasFocus();
		mSearchPlate.getBackground().setState(
				focused ? FOCUSED_STATE_SET : EMPTY_STATE_SET);
		mSubmitArea.getBackground().setState(
				focused ? FOCUSED_STATE_SET : EMPTY_STATE_SET);
		invalidate();
	}

	@Override
	protected void onDetachedFromWindow() {
		removeCallbacks(mUpdateDrawableStateRunnable);
		post(mReleaseCursorRunnable);
		super.onDetachedFromWindow();
	}

	private void setImeVisibility(final boolean visible) {
		if (visible) {
			post(mShowImeRunnable);
		} else {
			removeCallbacks(mShowImeRunnable);
			InputMethodManager imm = (InputMethodManager) getContext()
					.getSystemService(Context.INPUT_METHOD_SERVICE);

			if (imm != null) {
				imm.hideSoftInputFromWindow(getWindowToken(), 0);
			}
		}
	}

	/**
	 * Called by the SuggestionsAdapter
	 * 
	 * @hide
	 */
	/* package */void onQueryRefine(CharSequence queryText) {
		setQuery(queryText);
	}

	private final OnClickListener mOnClickListener = new OnClickListener() {

		public void onClick(View v) {
			if (v == mSearchButton) {
				onSearchClicked();
			} else if (v == mCloseButton) {
				onCloseClicked();
			} else if (v == mSubmitButton) {
				onSubmitQuery();
			} else if (v == mVoiceButton) {
				onVoiceClicked();
			} else if (v == mQueryTextView) {
				forceSuggestionQuery();
			}
		}
	};

	/**
	 * Handles the key down event for dealing with action keys.
	 * 
	 * @param keyCode
	 *            This is the keycode of the typed key, and is the same value as
	 *            found in the KeyEvent parameter.
	 * @param event
	 *            The complete event record for the typed key
	 * 
	 * @return true if the event was handled here, or false if not.
	 */
	@Override
	public boolean onKeyDown(int keyCode, KeyEvent event) {
		if (mSearchable == null) {
			return false;
		}

		// if it's an action specified by the searchable activity, launch the
		// entered query with the action key
		// TODO SearchableInfo.ActionKeyInfo actionKey =
		// mSearchable.findActionKey(keyCode);
		// TODO if ((actionKey != null) && (actionKey.getQueryActionMsg() !=
		// null)) {
		// TODO launchQuerySearch(keyCode, actionKey.getQueryActionMsg(),
		// mQueryTextView.getText()
		// TODO .toString());
		// TODO return true;
		// TODO }

		return super.onKeyDown(keyCode, event);
	}

	/**
	 * React to the user typing "enter" or other hardwired keys while typing in
	 * the search box. This handles these special keys while the edit box has
	 * focus.
	 */
	View.OnKeyListener mTextKeyListener = new View.OnKeyListener() {
		public boolean onKey(View v, int keyCode, KeyEvent event) {
			// guard against possible race conditions
			if (mSearchable == null) {
				return false;
			}

			if (DBG) {
				Log.d(LOG_TAG, "mTextListener.onKey(" + keyCode + "," + event
						+ "), selection: " + mQueryTextView.getListSelection());
			}

			// If a suggestion is selected, handle enter, search key, and action
			// keys
			// as presses on the selected suggestion
			if (mQueryTextView.isPopupShowing()
					&& mQueryTextView.getListSelection() != ListView.INVALID_POSITION) {
				return onSuggestionsKey(v, keyCode, event);
			}

			// If there is text in the query box, handle enter, and action keys
			// The search key is handled by the dialog's onKeyDown().
			if (!mQueryTextView.isEmpty()
					&& KeyEventCompat.hasNoModifiers(event)) {
				if (event.getAction() == KeyEvent.ACTION_UP) {
					if (keyCode == KeyEvent.KEYCODE_ENTER) {
						v.cancelLongPress();

						// Launch as a regular search.
						launchQuerySearch(KeyEvent.KEYCODE_UNKNOWN, null,
								mQueryTextView.getText().toString());
						return true;
					}
				}
				if (event.getAction() == KeyEvent.ACTION_DOWN) {
					// TODO SearchableInfo.ActionKeyInfo actionKey =
					// mSearchable.findActionKey(keyCode);
					// TODO if ((actionKey != null) &&
					// (actionKey.getQueryActionMsg() != null)) {
					// TODO launchQuerySearch(keyCode,
					// actionKey.getQueryActionMsg(), mQueryTextView
					// TODO .getText().toString());
					// TODO return true;
					// TODO }
				}
			}
			return false;
		}
	};

	/**
	 * React to the user typing while in the suggestions list. First, check for
	 * action keys. If not handled, try refocusing regular characters into the
	 * EditText.
	 */
	private boolean onSuggestionsKey(View v, int keyCode, KeyEvent event) {
		// guard against possible race conditions (late arrival after dismiss)
		if (mSearchable == null) {
			return false;
		}
		if (mSuggestionsAdapter == null) {
			return false;
		}
		if (event.getAction() == KeyEvent.ACTION_DOWN
				&& KeyEventCompat.hasNoModifiers(event)) {
			// First, check for enter or search (both of which we'll treat as a
			// "click")
			if (keyCode == KeyEvent.KEYCODE_ENTER
					|| keyCode == KeyEvent.KEYCODE_SEARCH
					|| keyCode == KeyEvent.KEYCODE_TAB) {
				int position = mQueryTextView.getListSelection();
				return onItemClicked(position, KeyEvent.KEYCODE_UNKNOWN, null);
			}

			// Next, check for left/right moves, which we use to "return" the
			// user to the edit view
			if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT
					|| keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) {
				// give "focus" to text editor, with cursor at the beginning if
				// left key, at end if right key
				// TODO: Reverse left/right for right-to-left languages, e.g.
				// Arabic
				int selPoint = (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) ? 0
						: mQueryTextView.length();
				mQueryTextView.setSelection(selPoint);
				mQueryTextView.setListSelection(0);
				mQueryTextView.clearListSelection();
				ensureImeVisible(mQueryTextView, true);

				return true;
			}

			// Next, check for an "up and out" move
			if (keyCode == KeyEvent.KEYCODE_DPAD_UP
					&& 0 == mQueryTextView.getListSelection()) {
				// TODO: restoreUserQuery();
				// let ACTV complete the move
				return false;
			}

			// Next, check for an "action key"
			// TODO SearchableInfo.ActionKeyInfo actionKey =
			// mSearchable.findActionKey(keyCode);
			// TODO if ((actionKey != null)
			// TODO && ((actionKey.getSuggestActionMsg() != null) || (actionKey
			// TODO .getSuggestActionMsgColumn() != null))) {
			// TODO // launch suggestion using action key column
			// TODO int position = mQueryTextView.getListSelection();
			// TODO if (position != ListView.INVALID_POSITION) {
			// TODO Cursor c = mSuggestionsAdapter.getCursor();
			// TODO if (c.moveToPosition(position)) {
			// TODO final String actionMsg = getActionKeyMessage(c, actionKey);
			// TODO if (actionMsg != null && (actionMsg.length() > 0)) {
			// TODO return onItemClicked(position, keyCode, actionMsg);
			// TODO }
			// TODO }
			// TODO }
			// TODO }
		}
		return false;
	}

	/**
	 * For a given suggestion and a given cursor row, get the action message. If
	 * not provided by the specific row/column, also check for a single
	 * definition (for the action key).
	 * 
	 * @param c
	 *            The cursor providing suggestions
	 * @param actionKey
	 *            The actionkey record being examined
	 * 
	 * @return Returns a string, or null if no action key message for this
	 *         suggestion
	 */
	// TODO private static String getActionKeyMessage(Cursor c,
	// SearchableInfo.ActionKeyInfo actionKey) {
	// TODO String result = null;
	// TODO // check first in the cursor data, for a suggestion-specific message
	// TODO final String column = actionKey.getSuggestActionMsgColumn();
	// TODO if (column != null) {
	// TODO result = SuggestionsAdapter.getColumnString(c, column);
	// TODO }
	// TODO // If the cursor didn't give us a message, see if there's a single
	// TODO // message defined
	// TODO // for the actionkey (for all suggestions)
	// TODO if (result == null) {
	// TODO result = actionKey.getSuggestActionMsg();
	// TODO }
	// TODO return result;
	// TODO }

	private int getSearchIconId() {
		TypedValue outValue = new TypedValue();
		getContext().getTheme().resolveAttribute(
				getResources().getIdentifier("searchViewSearchIcon", "attr",
						c.getPackageName()),
				// getContext().getTheme().resolveAttribute(R.attr.searchViewSearchIcon,
				outValue, true);
		return outValue.resourceId;
	}

	private CharSequence getDecoratedHint(CharSequence hintText) {
		// If the field is always expanded, then don't add the search icon to
		// the hint
		if (!mIconifiedByDefault)
			return hintText;

		SpannableStringBuilder ssb = new SpannableStringBuilder("   "); // for
																		// the
																		// icon
		ssb.append(hintText);
		Drawable searchIcon = getContext().getResources().getDrawable(
				getSearchIconId());
		int textSize = (int) (mQueryTextView.getTextSize() * 1.25);
		searchIcon.setBounds(0, 0, textSize, textSize);
		ssb.setSpan(new ImageSpan(searchIcon), 1, 2,
				Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
		return ssb;
	}

	private void updateQueryHint() {
		if (mQueryHint != null) {
			mQueryTextView.setHint(getDecoratedHint(mQueryHint));
		} else if (mSearchable != null) {
			CharSequence hint = null;
			int hintId = mSearchable.getHintId();
			if (hintId != 0) {
				hint = getContext().getString(hintId);
			}
			if (hint != null) {
				mQueryTextView.setHint(getDecoratedHint(hint));
			}
		} else {
			mQueryTextView.setHint(getDecoratedHint(""));
		}
	}

	/**
	 * Updates the auto-complete text view.
	 */
	private void updateSearchAutoComplete() {
		// TODO mQueryTextView.setDropDownAnimationStyle(0); // no animation
		mQueryTextView.setThreshold(mSearchable.getSuggestThreshold());
		mQueryTextView.setImeOptions(mSearchable.getImeOptions());
		int inputType = mSearchable.getInputType();
		// We only touch this if the input type is set up for text (which it
		// almost certainly
		// should be, in the case of search!)
		if ((inputType & InputType.TYPE_MASK_CLASS) == InputType.TYPE_CLASS_TEXT) {
			// The existence of a suggestions authority is the proxy for
			// "suggestions
			// are available here"
			inputType &= ~InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE;
			if (mSearchable.getSuggestAuthority() != null) {
				inputType |= InputType.TYPE_TEXT_FLAG_AUTO_COMPLETE;
				// TYPE_TEXT_FLAG_AUTO_COMPLETE means that the text editor is
				// performing
				// auto-completion based on its own semantics, which it will
				// present to the user
				// as they type. This generally means that the input method
				// should not show its
				// own candidates, and the spell checker should not be in
				// action. The text editor
				// supplies its candidates by calling
				// InputMethodManager.displayCompletions(),
				// which in turn will call
				// InputMethodSession.displayCompletions().
				inputType |= InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS;
			}
		}
		mQueryTextView.setInputType(inputType);
		if (mSuggestionsAdapter != null) {
			mSuggestionsAdapter.changeCursor(null);
		}
		// attach the suggestions adapter, if suggestions are available
		// The existence of a suggestions authority is the proxy for
		// "suggestions available here"
		if (mSearchable.getSuggestAuthority() != null) {
			mSuggestionsAdapter = new SuggestionsAdapter(getContext(), this,
					mSearchable, mOutsideDrawablesCache);
			mQueryTextView.setAdapter(mSuggestionsAdapter);
			((SuggestionsAdapter) mSuggestionsAdapter)
					.setQueryRefinement(mQueryRefinement ? SuggestionsAdapter.REFINE_ALL
							: SuggestionsAdapter.REFINE_BY_ENTRY);
		}
	}

	/**
	 * Update the visibility of the voice button. There are actually two voice
	 * search modes, either of which will activate the button.
	 * 
	 * @param empty
	 *            whether the search query text field is empty. If it is, then
	 *            the other criteria apply to make the voice button visible.
	 */
	private void updateVoiceButton(boolean empty) {
		int visibility = GONE;
		if (mVoiceButtonEnabled && !isIconified() && empty) {
			visibility = VISIBLE;
			mSubmitButton.setVisibility(GONE);
		}
		mVoiceButton.setVisibility(visibility);
	}

	private final OnEditorActionListener mOnEditorActionListener = new OnEditorActionListener() {

		/**
		 * Called when the input method default action key is pressed.
		 */
		public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
			onSubmitQuery();
			return true;
		}
	};

	private void onTextChanged(CharSequence newText) {
		CharSequence text = mQueryTextView.getText();
		mUserQuery = text;
		boolean hasText = !TextUtils.isEmpty(text);
		updateSubmitButton(hasText);
		updateVoiceButton(!hasText);
		updateCloseButton();
		updateSubmitArea();
		if (mOnQueryChangeListener != null
				&& !TextUtils.equals(newText, mOldQueryText)) {
			mOnQueryChangeListener.onQueryTextChange(newText.toString());
		}
		mOldQueryText = newText.toString();
	}

	private void onSubmitQuery() {
		CharSequence query = mQueryTextView.getText();
		if (query != null && TextUtils.getTrimmedLength(query) > 0) {
			if (mOnQueryChangeListener == null
					|| !mOnQueryChangeListener.onQueryTextSubmit(query
							.toString())) {
				if (mSearchable != null) {
					launchQuerySearch(KeyEvent.KEYCODE_UNKNOWN, null,
							query.toString());
					setImeVisibility(false);
				}
				dismissSuggestions();
			}
		}
	}

	private void dismissSuggestions() {
		mQueryTextView.dismissDropDown();
	}

	private void onCloseClicked() {
		CharSequence text = mQueryTextView.getText();
		if (TextUtils.isEmpty(text)) {
			if (mIconifiedByDefault) {
				// If the app doesn't override the close behavior
				if (mOnCloseListener == null || !mOnCloseListener.onClose()) {
					// hide the keyboard and remove focus
					clearFocus();
					// collapse the search field
					updateViewsVisibility(true);
				}
			}
		} else {
			mQueryTextView.setText("");
			mQueryTextView.requestFocus();
			setImeVisibility(true);
		}

	}

	private void onSearchClicked() {
		updateViewsVisibility(false);
		mQueryTextView.requestFocus();
		setImeVisibility(true);
		if (mOnSearchClickListener != null) {
			mOnSearchClickListener.onClick(this);
		}
	}

	private void onVoiceClicked() {
		// guard against possible race conditions
		if (mSearchable == null) {
			return;
		}
		SearchableInfo searchable = mSearchable;
		try {
			if (searchable.getVoiceSearchLaunchWebSearch()) {
				Intent webSearchIntent = createVoiceWebSearchIntent(
						mVoiceWebSearchIntent, searchable);
				getContext().startActivity(webSearchIntent);
			} else if (searchable.getVoiceSearchLaunchRecognizer()) {
				Intent appSearchIntent = createVoiceAppSearchIntent(
						mVoiceAppSearchIntent, searchable);
				getContext().startActivity(appSearchIntent);
			}
		} catch (ActivityNotFoundException e) {
			// Should not happen, since we check the availability of
			// voice search before showing the button. But just in case...
			Log.w(LOG_TAG, "Could not find voice search activity");
		}
	}

	void onTextFocusChanged() {
		updateViewsVisibility(isIconified());
		// Delayed update to make sure that the focus has settled down and
		// window focus changes
		// don't affect it. A synchronous update was not working.
		postUpdateFocusedState();
		if (mQueryTextView.hasFocus()) {
			forceSuggestionQuery();
		}
	}

	@Override
	public void onWindowFocusChanged(boolean hasWindowFocus) {
		super.onWindowFocusChanged(hasWindowFocus);

		postUpdateFocusedState();
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void onActionViewCollapsed() {
		clearFocus();
		updateViewsVisibility(true);
		mQueryTextView.setImeOptions(mCollapsedImeOptions);
		mExpandedInActionView = false;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void onActionViewExpanded() {
		if (mExpandedInActionView)
			return;

		mExpandedInActionView = true;
		mCollapsedImeOptions = mQueryTextView.getImeOptions();
		mQueryTextView.setImeOptions(mCollapsedImeOptions
				| EditorInfo.IME_FLAG_NO_FULLSCREEN);
		mQueryTextView.setText("");
		setIconified(false);
	}

	@Override
	public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
		super.onInitializeAccessibilityEvent(event);
		event.setClassName(SearchView.class.getName());
	}

	@Override
	public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
		super.onInitializeAccessibilityNodeInfo(info);
		info.setClassName(SearchView.class.getName());
	}

	private void adjustDropDownSizeAndPosition() {
		if (mDropDownAnchor.getWidth() > 1) {
			Resources res = getContext().getResources();
			int anchorPadding = mSearchPlate.getPaddingLeft();
			Rect dropDownPadding = new Rect();
			int iconOffset = mIconifiedByDefault ? res
					.getDimensionPixelSize(getResources().getIdentifier(
							"abs__dropdownitem_icon_width", "dimen",
							c.getPackageName()))
					// .getDimensionPixelSize(R.dimen.abs__dropdownitem_icon_width)
					+ res.getDimensionPixelSize(getResources().getIdentifier(
							"abs__dropdownitem_text_padding_left", "dimen",
							c.getPackageName()))
			// +
			// res.getDimensionPixelSize(R.dimen.abs__dropdownitem_text_padding_left)
					: 0;
			mQueryTextView.getDropDownBackground().getPadding(dropDownPadding);
			mQueryTextView
					.setDropDownHorizontalOffset(-(dropDownPadding.left + iconOffset)
							+ anchorPadding);
			mQueryTextView.setDropDownWidth(mDropDownAnchor.getWidth()
					+ dropDownPadding.left + dropDownPadding.right + iconOffset
					- (anchorPadding));
		}
	}

	private boolean onItemClicked(int position, int actionKey, String actionMsg) {
		if (mOnSuggestionListener == null
				|| !mOnSuggestionListener.onSuggestionClick(position)) {
			launchSuggestion(position, KeyEvent.KEYCODE_UNKNOWN, null);
			setImeVisibility(false);
			dismissSuggestions();
			return true;
		}
		return false;
	}

	private boolean onItemSelected(int position) {
		if (mOnSuggestionListener == null
				|| !mOnSuggestionListener.onSuggestionSelect(position)) {
			rewriteQueryFromSuggestion(position);
			return true;
		}
		return false;
	}

	private final OnItemClickListener mOnItemClickListener = new OnItemClickListener() {

		/**
		 * Implements OnItemClickListener
		 */
		public void onItemClick(AdapterView<?> parent, View view, int position,
				long id) {
			if (DBG)
				Log.d(LOG_TAG, "onItemClick() position " + position);
			onItemClicked(position, KeyEvent.KEYCODE_UNKNOWN, null);
		}
	};

	private final OnItemSelectedListener mOnItemSelectedListener = new OnItemSelectedListener() {

		/**
		 * Implements OnItemSelectedListener
		 */
		public void onItemSelected(AdapterView<?> parent, View view,
				int position, long id) {
			if (DBG)
				Log.d(LOG_TAG, "onItemSelected() position " + position);
			SearchView.this.onItemSelected(position);
		}

		/**
		 * Implements OnItemSelectedListener
		 */
		public void onNothingSelected(AdapterView<?> parent) {
			if (DBG)
				Log.d(LOG_TAG, "onNothingSelected()");
		}
	};

	/**
	 * Query rewriting.
	 */
	private void rewriteQueryFromSuggestion(int position) {
		CharSequence oldQuery = mQueryTextView.getText();
		Cursor c = mSuggestionsAdapter.getCursor();
		if (c == null) {
			return;
		}
		if (c.moveToPosition(position)) {
			// Get the new query from the suggestion.
			CharSequence newQuery = mSuggestionsAdapter.convertToString(c);
			if (newQuery != null) {
				// The suggestion rewrites the query.
				// Update the text field, without getting new suggestions.
				setQuery(newQuery);
			} else {
				// The suggestion does not rewrite the query, restore the user's
				// query.
				setQuery(oldQuery);
			}
		} else {
			// We got a bad position, restore the user's query.
			setQuery(oldQuery);
		}
	}

	/**
	 * Launches an intent based on a suggestion.
	 * 
	 * @param position
	 *            The index of the suggestion to create the intent from.
	 * @param actionKey
	 *            The key code of the action key that was pressed, or
	 *            {@link KeyEvent#KEYCODE_UNKNOWN} if none.
	 * @param actionMsg
	 *            The message for the action key that was pressed, or
	 *            <code>null</code> if none.
	 * @return true if a successful launch, false if could not (e.g. bad
	 *         position).
	 */
	private boolean launchSuggestion(int position, int actionKey,
			String actionMsg) {
		Cursor c = mSuggestionsAdapter.getCursor();
		if ((c != null) && c.moveToPosition(position)) {

			Intent intent = createIntentFromSuggestion(c, actionKey, actionMsg);

			// launch the intent
			launchIntent(intent);

			return true;
		}
		return false;
	}

	/**
	 * Launches an intent, including any special intent handling.
	 */
	private void launchIntent(Intent intent) {
		if (intent == null) {
			return;
		}
		try {
			// If the intent was created from a suggestion, it will always have
			// an explicit
			// component here.
			getContext().startActivity(intent);
		} catch (RuntimeException ex) {
			Log.e(LOG_TAG, "Failed launch activity: " + intent, ex);
		}
	}

	/**
	 * Sets the text in the query box, without updating the suggestions.
	 */
	private void setQuery(CharSequence query) {
		setText(mQueryTextView, query, true);
		// Move the cursor to the end
		mQueryTextView.setSelection(TextUtils.isEmpty(query) ? 0 : query
				.length());
	}

	private void launchQuerySearch(int actionKey, String actionMsg, String query) {
		String action = Intent.ACTION_SEARCH;
		Intent intent = createIntent(action, null, null, query, actionKey,
				actionMsg);
		getContext().startActivity(intent);
	}

	/**
	 * Constructs an intent from the given information and the search dialog
	 * state.
	 * 
	 * @param action
	 *            Intent action.
	 * @param data
	 *            Intent data, or <code>null</code>.
	 * @param extraData
	 *            Data for {@link SearchManager#EXTRA_DATA_KEY} or
	 *            <code>null</code>.
	 * @param query
	 *            Intent query, or <code>null</code>.
	 * @param actionKey
	 *            The key code of the action key that was pressed, or
	 *            {@link KeyEvent#KEYCODE_UNKNOWN} if none.
	 * @param actionMsg
	 *            The message for the action key that was pressed, or
	 *            <code>null</code> if none.
	 * @return The intent.
	 */
	private Intent createIntent(String action, Uri data, String extraData,
			String query, int actionKey, String actionMsg) {
		// Now build the Intent
		Intent intent = new Intent(action);
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		// We need CLEAR_TOP to avoid reusing an old task that has other
		// activities
		// on top of the one we want. We don't want to do this in in-app search
		// though,
		// as it can be destructive to the activity stack.
		if (data != null) {
			intent.setData(data);
		}
		intent.putExtra(SearchManager.USER_QUERY, mUserQuery);
		if (query != null) {
			intent.putExtra(SearchManager.QUERY, query);
		}
		if (extraData != null) {
			intent.putExtra(SearchManager.EXTRA_DATA_KEY, extraData);
		}
		if (mAppSearchData != null) {
			intent.putExtra(SearchManager.APP_DATA, mAppSearchData);
		}
		if (actionKey != KeyEvent.KEYCODE_UNKNOWN) {
			intent.putExtra(SearchManager.ACTION_KEY, actionKey);
			intent.putExtra(SearchManager.ACTION_MSG, actionMsg);
		}
		intent.setComponent(mSearchable.getSearchActivity());
		return intent;
	}

	/**
	 * Create and return an Intent that can launch the voice search activity for
	 * web search.
	 */
	private Intent createVoiceWebSearchIntent(Intent baseIntent,
			SearchableInfo searchable) {
		Intent voiceIntent = new Intent(baseIntent);
		ComponentName searchActivity = searchable.getSearchActivity();
		voiceIntent.putExtra(
				RecognizerIntent.EXTRA_CALLING_PACKAGE,
				searchActivity == null ? null : searchActivity
						.flattenToShortString());
		return voiceIntent;
	}

	/**
	 * Create and return an Intent that can launch the voice search activity,
	 * perform a specific voice transcription, and forward the results to the
	 * searchable activity.
	 * 
	 * @param baseIntent
	 *            The voice app search intent to start from
	 * @return A completely-configured intent ready to send to the voice search
	 *         activity
	 */
	private Intent createVoiceAppSearchIntent(Intent baseIntent,
			SearchableInfo searchable) {
		ComponentName searchActivity = searchable.getSearchActivity();

		// create the necessary intent to set up a search-and-forward operation
		// in the voice search system. We have to keep the bundle separate,
		// because it becomes immutable once it enters the PendingIntent
		Intent queryIntent = new Intent(Intent.ACTION_SEARCH);
		queryIntent.setComponent(searchActivity);
		PendingIntent pending = PendingIntent.getActivity(getContext(), 0,
				queryIntent, PendingIntent.FLAG_ONE_SHOT);

		// Now set up the bundle that will be inserted into the pending intent
		// when it's time to do the search. We always build it here (even if
		// empty)
		// because the voice search activity will always need to insert "QUERY"
		// into
		// it anyway.
		Bundle queryExtras = new Bundle();

		// Now build the intent to launch the voice search. Add all necessary
		// extras to launch the voice recognizer, and then all the necessary
		// extras
		// to forward the results to the searchable activity
		Intent voiceIntent = new Intent(baseIntent);

		// Add all of the configuration options supplied by the searchable's
		// metadata
		String languageModel = RecognizerIntent.LANGUAGE_MODEL_FREE_FORM;
		String prompt = null;
		String language = null;
		int maxResults = 1;

		Resources resources = getResources();
		if (searchable.getVoiceLanguageModeId() != 0) {
			languageModel = resources.getString(searchable
					.getVoiceLanguageModeId());
		}
		if (searchable.getVoicePromptTextId() != 0) {
			prompt = resources.getString(searchable.getVoicePromptTextId());
		}
		if (searchable.getVoiceLanguageId() != 0) {
			language = resources.getString(searchable.getVoiceLanguageId());
		}
		if (searchable.getVoiceMaxResults() != 0) {
			maxResults = searchable.getVoiceMaxResults();
		}
		voiceIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
				languageModel);
		voiceIntent.putExtra(RecognizerIntent.EXTRA_PROMPT, prompt);
		voiceIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, language);
		voiceIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, maxResults);
		voiceIntent.putExtra(
				RecognizerIntent.EXTRA_CALLING_PACKAGE,
				searchActivity == null ? null : searchActivity
						.flattenToShortString());

		// Add the values that configure forwarding the results
		voiceIntent.putExtra(RecognizerIntent.EXTRA_RESULTS_PENDINGINTENT,
				pending);
		voiceIntent.putExtra(
				RecognizerIntent.EXTRA_RESULTS_PENDINGINTENT_BUNDLE,
				queryExtras);

		return voiceIntent;
	}

	/**
	 * When a particular suggestion has been selected, perform the various
	 * lookups required to use the suggestion. This includes checking the cursor
	 * for suggestion-specific data, and/or falling back to the XML for
	 * defaults; It also creates REST style Uri data when the suggestion
	 * includes a data id.
	 * 
	 * @param c
	 *            The suggestions cursor, moved to the row of the user's
	 *            selection
	 * @param actionKey
	 *            The key code of the action key that was pressed, or
	 *            {@link KeyEvent#KEYCODE_UNKNOWN} if none.
	 * @param actionMsg
	 *            The message for the action key that was pressed, or
	 *            <code>null</code> if none.
	 * @return An intent for the suggestion at the cursor's position.
	 */
	private Intent createIntentFromSuggestion(Cursor c, int actionKey,
			String actionMsg) {
		try {
			// use specific action if supplied, or default action if supplied,
			// or fixed default
			String action = getColumnString(c,
					SearchManager.SUGGEST_COLUMN_INTENT_ACTION);

			if (action == null) {
				action = mSearchable.getSuggestIntentAction();
			}
			if (action == null) {
				action = Intent.ACTION_SEARCH;
			}

			// use specific data if supplied, or default data if supplied
			String data = getColumnString(c,
					SearchManager.SUGGEST_COLUMN_INTENT_DATA);
			if (data == null) {
				data = mSearchable.getSuggestIntentData();
			}
			// then, if an ID was provided, append it.
			if (data != null) {
				String id = getColumnString(c,
						SearchManager.SUGGEST_COLUMN_INTENT_DATA_ID);
				if (id != null) {
					data = data + "/" + Uri.encode(id);
				}
			}
			Uri dataUri = (data == null) ? null : Uri.parse(data);

			String query = getColumnString(c,
					SearchManager.SUGGEST_COLUMN_QUERY);
			String extraData = getColumnString(c,
					SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA);

			return createIntent(action, dataUri, extraData, query, actionKey,
					actionMsg);
		} catch (RuntimeException e) {
			int rowNum;
			try { // be really paranoid now
				rowNum = c.getPosition();
			} catch (RuntimeException e2) {
				rowNum = -1;
			}
			Log.w(LOG_TAG, "Search suggestions cursor at row " + rowNum
					+ " returned exception.", e);
			return null;
		}
	}

	private void forceSuggestionQuery() {
		try {
			Method before = AutoCompleteTextView.class
					.getDeclaredMethod("doBeforeTextChanged");
			Method after = AutoCompleteTextView.class
					.getDeclaredMethod("doAfterTextChanged");
			before.setAccessible(true);
			after.setAccessible(true);
			before.invoke(mQueryTextView);
			after.invoke(mQueryTextView);
		} catch (Exception e) {
			// Oh well...
		}
	}

	static boolean isLandscapeMode(Context context) {
		return context.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
	}

	/**
	 * Callback to watch the text field for empty/non-empty
	 */
	private TextWatcher mTextWatcher = new TextWatcher() {

		public void beforeTextChanged(CharSequence s, int start, int before,
				int after) {
		}

		public void onTextChanged(CharSequence s, int start, int before,
				int after) {
			SearchView.this.onTextChanged(s);
		}

		public void afterTextChanged(Editable s) {
		}
	};

	/**
	 * Local subclass for AutoCompleteTextView.
	 * 
	 * @hide
	 */
	public static class SearchAutoComplete extends AutoCompleteTextView {

		private int mThreshold;
		private SearchView mSearchView;

		public SearchAutoComplete(Context context) {
			super(context);
			mThreshold = getThreshold();
		}

		public SearchAutoComplete(Context context, AttributeSet attrs) {
			super(context, attrs);
			mThreshold = getThreshold();
		}

		public SearchAutoComplete(Context context, AttributeSet attrs,
				int defStyle) {
			super(context, attrs, defStyle);
			mThreshold = getThreshold();
		}

		void setSearchView(SearchView searchView) {
			mSearchView = searchView;
		}

		@Override
		public void setThreshold(int threshold) {
			super.setThreshold(threshold);
			mThreshold = threshold;
		}

		/**
		 * Returns true if the text field is empty, or contains only whitespace.
		 */
		private boolean isEmpty() {
			return TextUtils.getTrimmedLength(getText()) == 0;
		}

		/**
		 * We override this method to avoid replacing the query box text when a
		 * suggestion is clicked.
		 */
		@Override
		protected void replaceText(CharSequence text) {
		}

		/**
		 * We override this method to avoid an extra onItemClick being called on
		 * the drop-down's OnItemClickListener by
		 * {@link AutoCompleteTextView#onKeyUp(int, KeyEvent)} when an item is
		 * clicked with the trackball.
		 */
		@Override
		public void performCompletion() {
		}

		/**
		 * We override this method to be sure and show the soft keyboard if
		 * appropriate when the TextView has focus.
		 */
		@Override
		public void onWindowFocusChanged(boolean hasWindowFocus) {
			super.onWindowFocusChanged(hasWindowFocus);

			if (hasWindowFocus && mSearchView.hasFocus()
					&& getVisibility() == VISIBLE) {
				InputMethodManager inputManager = (InputMethodManager) getContext()
						.getSystemService(Context.INPUT_METHOD_SERVICE);
				inputManager.showSoftInput(this, 0);
				// If in landscape mode, then make sure that
				// the ime is in front of the dropdown.
				if (isLandscapeMode(getContext())) {
					ensureImeVisible(this, true);
				}
			}
		}

		@Override
		protected void onFocusChanged(boolean focused, int direction,
				Rect previouslyFocusedRect) {
			super.onFocusChanged(focused, direction, previouslyFocusedRect);
			mSearchView.onTextFocusChanged();
		}

		/**
		 * We override this method so that we can allow a threshold of zero,
		 * which ACTV does not.
		 */
		@Override
		public boolean enoughToFilter() {
			return mThreshold <= 0 || super.enoughToFilter();
		}

		@Override
		public boolean onKeyPreIme(int keyCode, KeyEvent event) {
			if (keyCode == KeyEvent.KEYCODE_BACK) {
				// special case for the back key, we do not even try to send it
				// to the drop down list but instead, consume it immediately
				if (event.getAction() == KeyEvent.ACTION_DOWN
						&& event.getRepeatCount() == 0) {
					KeyEvent.DispatcherState state = getKeyDispatcherState();
					if (state != null) {
						state.startTracking(event, this);
					}
					return true;
				} else if (event.getAction() == KeyEvent.ACTION_UP) {
					KeyEvent.DispatcherState state = getKeyDispatcherState();
					if (state != null) {
						state.handleUpEvent(event);
					}
					if (event.isTracking() && !event.isCanceled()) {
						mSearchView.clearFocus();
						mSearchView.setImeVisibility(false);
						return true;
					}
				}
			}
			return super.onKeyPreIme(keyCode, event);
		}

	}

	private static void ensureImeVisible(AutoCompleteTextView view,
			boolean visible) {
		try {
			Method method = AutoCompleteTextView.class.getMethod(
					"ensureImeVisible", boolean.class);
			method.setAccessible(true);
			method.invoke(view, visible);
		} catch (Exception e) {
			// Oh well...
		}
	}

	private static void showSoftInputUnchecked(View view,
			InputMethodManager imm, int flags) {
		try {
			Method method = imm.getClass().getMethod("showSoftInputUnchecked",
					int.class, ResultReceiver.class);
			method.setAccessible(true);
			method.invoke(imm, flags, null);
		} catch (Exception e) {
			// Fallback to public API which hopefully does mostly the same thing
			imm.showSoftInput(view, flags);
		}
	}

	private static void setText(AutoCompleteTextView view, CharSequence text,
			boolean filter) {
		try {
			Method method = AutoCompleteTextView.class.getMethod("setText",
					CharSequence.class, boolean.class);
			method.setAccessible(true);
			method.invoke(view, text, filter);
		} catch (Exception e) {
			// Fallback to public API which hopefully does mostly the same thing
			view.setText(text);
		}
	}
}
